I think the upbeat conclusion trying to downplay the dangers of Fukushima is misleading. The long term escape of large amounts of radioactive materials at Fukushima is a very different situation to Hiroshima and Nagasaki.

In fact, it is a logical fallacy to argue that Hiroshima and Nagasaki recovered well because of next to no radioactive materials being left there and therefore that Fukushima is no problem.

Though it is easy to see where the funding and motivation for these kinds of "arguments" is coming from.